Post-accident Fuel Relocation and Heat Removal in the LMFBR. PDF Download
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Languages : en
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Book Description
Assessment of the dynamics of post-accident fuel relocation and heat removal is an important aspect of the evaluation of the consequences of a hypothetical accident in an LMFBR. Such an assessment is of particular importance in the evaluation of the post-accident radiological doses around the reactor site. In the present evaluation particular attention is given to the design features of the Clinch River Breeder Reactor Plant (CRBR). Fuel relocation and heat removal, assuming certain conditions have resulted in core disruption, are discussed. The discussion of events and phenomena involved in the relocation processes is centered around the resulting patterns of heat source distribution. The factors influencing fuel relocation and distribution in the inlet and outlet plena of the reactor vessel are discussed. The current technology of in-vessel heat removal is applied to the design of the CRBR reactor. Both fuel debris cooling limits and overall coolant flow in the reactor under natural convection conditions are explored. Some of the uncertainties in ex-vessel fuel behavior are addressed. In particular, the effect of melting the cavity bed on the rate of growth of a molten fuel pool is investigated.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Assessment of the dynamics of post-accident fuel relocation and heat removal is an important aspect of the evaluation of the consequences of a hypothetical accident in an LMFBR. Such an assessment is of particular importance in the evaluation of the post-accident radiological doses around the reactor site. In the present evaluation particular attention is given to the design features of the Clinch River Breeder Reactor Plant (CRBR). Fuel relocation and heat removal, assuming certain conditions have resulted in core disruption, are discussed. The discussion of events and phenomena involved in the relocation processes is centered around the resulting patterns of heat source distribution. The factors influencing fuel relocation and distribution in the inlet and outlet plena of the reactor vessel are discussed. The current technology of in-vessel heat removal is applied to the design of the CRBR reactor. Both fuel debris cooling limits and overall coolant flow in the reactor under natural convection conditions are explored. Some of the uncertainties in ex-vessel fuel behavior are addressed. In particular, the effect of melting the cavity bed on the rate of growth of a molten fuel pool is investigated.
Author: Mujid S. Kazimi
Publisher:
ISBN:
Category : Liquid metal fast breeder reactors
Languages : en
Pages : 109
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Book Description
Author:
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ISBN:
Category : Breeder reactors
Languages : en
Pages : 92
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Book Description
Author: U.S. Nuclear Regulatory Commission. Division of Project Management
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ISBN:
Category : Breeder reactors
Languages : en
Pages : 164
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Book Description
Author: J. Castle
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Category : Breeder reactors
Languages : en
Pages :
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Book Description
Author:
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Category :
Languages : en
Pages :
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Book Description
The report deals with the behavior of molten core debris following a hypothetical core disruptive accident in the proposed Clinch River Breeder Reactor Plant. Heat dissipating characteristics of an ex-vessel sacrificial bed have been analyzed. A novel form of heat transfer, analogous to film boiling, has been proposed to describe heat transfer from a heat generating pool to surrounding steel walls. Bounding type heat transfer calculations are also made to quantify such hypothetical accident characteristics as debris bed remelting, debris bed dryout in sodium, and failure of the reactor cavity steel liner. Several documents that have been submitted to the NRC for its review of the CRBRP are discussed with attention being drawn to heat transfer related issues.
Author: J. Castle
Publisher:
ISBN:
Category : Breeder reactors
Languages : en
Pages : 72
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Book Description
Author: Mujid S. Kazimi
Publisher:
ISBN:
Category : Liquid metal fast breeder reactors
Languages : en
Pages : 98
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Book Description
"The potential for safe containment of the core materials of a liquid metal fast breeder reactor (LMFBR) following a hypothetical disruptive accident (HCDA) depends to a great extent on the post-accident distirbution of the reactor materials ... In this report a preliminary evaluation of the major factors that influence the mechanisms of fuel relocation from the disrupted core is made. Particular attention has been given to the design features of the Clinch Breeder Reactor plant (CRBR)"--Introduction.
Author:
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ISBN:
Category : Nuclear energy
Languages : en
Pages : 658
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Book Description
Author: Mujid S. Kazimi
Publisher:
ISBN:
Category : Liquid metal fast breeder reactors
Languages : en
Pages : 166
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Book Description
"The analysis of the behavior of a liquid metal fast breeder reactor (LMFBR) following a hypothetical core disruptive accident (HCDA) involves a wide range of technical subjects that have become known as the post-accident heat removal technology. In this report, a brief review of current state-of-art of the post-accident heat removal (PAHR) technology as applied to the LMFBR is presented"--Page 1.
